671054 has 4 divisors (see below), whose sum is σ = 1006584. Its totient is φ = 335526.

The previous prime is 671039. The next prime is 671059. The reversal of 671054 is 450176.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167762 + ... + 167765.

It is an arithmetic number, because the mean of its divisors is an integer number (251646).

2⁶⁷¹⁰⁵⁴ is an apocalyptic number.

671054 is a deficient number, since it is larger than the sum of its proper divisors (335530).

671054 is a wasteful number, since it uses less digits than its factorization.

671054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335529.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 671054 is about 819.1788571490. The cubic root of 671054 is about 87.5492620564.

The spelling of 671054 in words is "six hundred seventy-one thousand, fifty-four".